[TRNSYS-users] Question

David Bradley bradley at tess-inc.com
Thu Aug 20 13:46:25 PDT 2009


Senne,
  Typically the way this would be accomplished is to connect the flow 
from Type60's outlet to the active layer fluid inlet temperature and 
mass flow rate via a pump and to turn the pump on and off based on the 
control signal of a thermostat that watches the zone temperature 
(Type108 would be a good choice for the thermostat model). The tank 
would then be kept warm separately by some kind of heater. Type60 has a 
thermostat and heater built into it if you want to use an electric or 
gas element. Take a look at parameters 15 through 29. If you are heating 
the tank by external means (a solar collector, a heat pump, etc.) then 
Type2 is probably the correct choice but it should look at the tank 
bottom temperature and the outlet temperature of the heating device.
Kind regards,
 David


senne plessers wrote:
> Dear all,
>  
> I recently start using trnsys16, now I have to implement a house that has
> an active layer in the floor and in the ceiling. To supply the heating 
> I added
> a thermal storage (type60t) that is connected to the actieve layer and the
> heating in trnbuild.
>  
> Now I want to control this heating or storage tank, I want to turn off 
> the heating
> when the temperature rises above a certain value, because above this 
> value it is
> not necessary to produce heat. I thought I had to do it with type2 but 
> it doesn't
> seem to work. Is there a way to shut the heating off in these periods? 
> Or am I
> doing something wrong with my parameters and inputs? I follow this 
> procedure:
>  
> Upper input temperature=25
> Lower input temperature I connect with the temperature of a thermal zone
> Monitoring temperature=0
> Upper dead band = 5
> Lower dead band=0
> The output control function I connect with the input of the heating
>  
>  
> Kind Regards,
>  
> Senne
>
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Thermal Energy System Specialists (TESS), LLC 
David BRADLEY                      22 N. Carroll Street - Suite 370 
Partner                            Madison, WI 53703 
                                   USA
P: +1.608.274.2577 
F: +1.608.278.1475
E-mail: bradley at tess-inc.com 
Web Pages:  http://www.tess-inc.com    and      http://www.trnsys.com

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